Subnets Affected: 220.127.116.11/24, 18.104.22.168/25, 22.214.171.124/24, 126.96.36.199/23
The code revisions are close, so we expect to be able to perform a hitless upgrade; there should be no perceivable disruption. Nevertheless, I’m scheduling a 45 minute maintenance window (1715-1800) in case of problems.
[2009-05-18 18:00:47 | Mike Howard]
Unfortunately, contrary to the documentation, the upgrade required all the line cards be reset, leading to roughly 1-2 minutes of perceived outage per switch and again for the main router. Also, the 3rd floor switch needed manual intervention to reboot the backup managment module a second time. So much for “hitless” failover. All services are operational.
Resolved as of 2009-05-18 18:00:00